Paratfollicular cells or C cells of thyroid also secrete calcitonin, which has the function of ( ). A: Enhancing osteoblast activity B: Promoting the conversion of bone calcium into blood calcium C: Promoting calcification of bone tissue D: Reducing blood calcium E: Elevating blood calcium

Which of the followings is the leading cause of her illness? A: Iodine deficiency B: Disorders related to hypothalamus and pituitary gland C: Thyroid hormone resistance D: Thyroid dyshormonogenesis E: Thyroid dysgenesis

A 65-year-old man recently retired after many years in a job that involved exposure to aniline dyes. One month ago, he had an episode of hematuria that was not accompanied by abdominal pain. On physical examination, there are no abnormal findings. Urinalysis shows hematuria (4+) and no ketones, glucose, or protein. The result of a urine culture is negative. What is the most likely diagnosis? A: Renal clear cell carcinoma B: Glomerular disease C: Pyelonephritis D: Urothelial carcinoma

“necklace<br/>sign” can be seen in____ A: the<br/>gastric carcinoma; B: the<br/>gastric ulcer; C: duodenum<br/>ulcer D: esophagus<br/>carcinoma; E: rectal<br/>carcinoma

A 65-year-old woman is noted to have suspected uterine fibroids on physical examination. Over the course of 1 year, she is noted to have enlargement of her uterus from approximately 12 weeks’ size to 20 weeks’ size. Which of the following is the best management? () A: Continued careful observation B: Monitoring with ultrasound examinations C: Exploratory laparotomy with hysterectomy D: Gonadotropin-releasing hormone agonist E: Progestin therapy